<!DOCTYPE html>
<html>

<head>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <style>
        .col-container {
            display: table;
            width: 100%;
        }

        .col {
            display: table-cell;
            padding: 16px;
        }
    </style>
</head>

<body>


    <h2>Equal Height Columns</h2>
    <p>Make the columns match the height of the tallest column.</p>
    <h1>列等高</h1>
    <h1>列等高</h1>
    <pre>
        <h2>

            必知必会 
            
            .col-container {
                display: table;
                width: 100%;
            }
    
            .col {
                display: table-cell;
                padding: 16px;
            }
        </h2>
    </pre>

    <div class="col-container">
        <div class="col" style="background:orange">
            <h2>Column 1</h2>
            <p>Hello World</p>
        </div>

        <div class="col" style="background:yellow">
            <h2>Column 2</h2>
            <p>Hello World!</p>
            <p>Hello World!</p>
            <p>Hello World!</p>
            <p>Hello World!</p>
            <p>Hello World!</p>
            <p>Hello World!</p>
            <p>Hello World!</p>
            <p>Hello World!</p>
        </div>

        <div class="col" style="background:orange">
            <h2>Column 3</h2>
            <p>Some other text..</p>
            <p>Some other text..</p>
        </div>
    </div>

</body>

</html>